<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="zh">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=11"/>
<meta name="generator" content="Doxygen 1.11.0"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>cppMISC: src/QT/percent.cpp 源文件</title>
<link href="../../tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../jquery.js"></script>
<script type="text/javascript" src="../../dynsections.js"></script>
<script type="text/javascript" src="../../clipboard.js"></script>
<link href="../../navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../resize.js"></script>
<script type="text/javascript" src="../../cookie.js"></script>
<link href="../../search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../search/searchdata.js"></script>
<script type="text/javascript" src="../../search/search.js"></script>
<script type="text/javascript" src="../../darkmode_toggle.js"></script>
<link href="../../doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr id="projectrow">
  <td id="projectalign">
   <div id="projectname">cppMISC<span id="projectnumber">&#160;v1.1</span>
   </div>
   <div id="projectbrief">cppMisc 文档系统</div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- 制作者 Doxygen 1.11.0 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "../../search/",'.html');
/* @license-end */
</script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function() { codefold.init(1); });
/* @license-end */
</script>
<script type="text/javascript" src="../../menudata.js"></script>
<script type="text/javascript" src="../../menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function() {
  initMenu('../../',true,false,'search.php','搜索',false);
  $(function() { init_search(); });
});
/* @license-end */
</script>
<div id="main-nav"></div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function(){ initResizable(false); });
/* @license-end */
</script>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<div id="MSearchResults">
<div class="SRPage">
<div id="SRIndex">
<div id="SRResults"></div>
<div class="SRStatus" id="Loading">载入中...</div>
<div class="SRStatus" id="Searching">搜索中...</div>
<div class="SRStatus" id="NoMatches">未找到</div>
</div>
</div>
</div>
</div>

<div id="nav-path" class="navpath">
  <ul>
<li class="navelem"><a class="el" href="../../dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="../../dir_7e57ed9bf0330dc5c33ca8597cfe6eed.html">QT</a></li>  </ul>
</div>
</div><!-- top -->
<div id="doc-content">
<div class="header">
  <div class="headertitle"><div class="title">percent.cpp</div></div>
</div><!--header-->
<div class="contents">
<a href="../../d9/df0/percent_8cpp.html">浏览该文件的文档.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="preprocessor">#include &lt;Qpainter&gt;</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="preprocessor">#include &quot;<a class="code" href="../../de/db7/percent_8h.html">QT/percent.h</a>&quot;</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span> </div>
<div class="foldopen" id="foldopen00004" data-start="{" data-end="}">
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"><a class="line" href="../../d9/d39/classpercent.html#ae41c50b64056aa9f9ac5b9d96b31ccb9">    4</a></span><a class="code hl_function" href="../../d9/d39/classpercent.html#ae41c50b64056aa9f9ac5b9d96b31ccb9">percent::percent</a>(QWidget *parent)</div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span>    : QWidget{parent},</div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span>      __m_start_angle( -20 ),</div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span>      __m_end_angle( 220 ),</div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span>      __m_value( 0 ),</div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span>      __m_back_color( QColor(0,0,0, 100 ) ),</div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span>      __m_canvas_color( QColor(255,255,255 ) ),</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span>      __m_arc_color( QColor( 128,200,128 ) ),</div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span>      __m_font_color( QColor( 255,255,255 ))</div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span>{</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span>}</div>
</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span> </div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"><a class="line" href="../../d9/d39/classpercent.html#a3f127b4019e99ff081b8ef0564908734">   17</a></span><a class="code hl_function" href="../../d9/d39/classpercent.html#a3f127b4019e99ff081b8ef0564908734">percent::~percent</a>(){}</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="keywordtype">void</span> percent::paintEvent( QPaintEvent * <span class="comment">/*evt*/</span> )</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span>{</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span>    QPainter p( <span class="keyword">this</span> );</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span>    p.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing );</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span>    QSize s = size();</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span>    QPen pen2( __m_canvas_color );</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span>    p.setPen( pen2 );</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span>    QBrush b( __m_canvas_color );</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span>    p.setBrush( b );</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span>    p.drawRect( 1, 1,s.width() - 2, s.height() - 2);</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span> </div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span>    p.setViewport( 15, 15 ,s.width() - 30 , s.height() - 30 );</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span>    p.setWindow( -50,-50 , 100, 100 );</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span>    <span class="comment">// 调试边框内容</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span>    QPen pen1( __m_back_color );</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span>    p.setPen( pen1 );</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span>    QBrush b2( __m_back_color );</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span>    p.setBrush( b2 );</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span>    p.drawEllipse( -50 , -50 , 100 , 100 );</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span> </div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>    QPen pen( __m_arc_color.lighter() );</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>    pen.setWidthF( 3 );</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>    p.setPen( pen );</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>    p.drawArc( -40, -40 , 80 , 80 , ( 180 -__m_start_angle) * 16,-__m_end_angle  * 16 );</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>    pen.setColor( __m_arc_color );</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>    pen.setWidthF( 5 );</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span>    p.setPen( pen );</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span> </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span>    <span class="keywordtype">float</span> span = __m_end_angle - __m_start_angle;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span>    <span class="keywordflow">if</span>( span &lt; 0 ) span = -span;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>    <span class="keywordtype">float</span> r = __m_value / 100;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>    span *= r;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>    p.drawArc( -40, -40 , 80 , 80 , ( 180 -__m_start_angle) * 16, -span * 16 );</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span> </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span>    p.setPen( pen1 );</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>    p.setBrush( b2 );</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>    p.drawEllipse( -30 , -30 , 60, 60 );</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span> </div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>    QString str = QString::asprintf( <span class="stringliteral">&quot;%.0f%%&quot;</span> , __m_value );</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>    QFontMetricsF fm( __m_font );</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>    QRectF s1 = fm.boundingRect( str );</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>    qreal x = 0, y = 0;</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>    x = s1.width() / 2;</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>    y = s1.height() / 4;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>    pen.setColor( __m_font_color );</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>    p.setFont( __m_font );</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span>    p.setPen( pen );</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>    p.drawText( -x , y , str );</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>}</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span> </div>
<div class="ttc" id="aclasspercent_html_a3f127b4019e99ff081b8ef0564908734"><div class="ttname"><a href="../../d9/d39/classpercent.html#a3f127b4019e99ff081b8ef0564908734">percent::~percent</a></div><div class="ttdeci">virtual ~percent()</div><div class="ttdef"><b>定义</b> <a href="#l00017">percent.cpp:17</a></div></div>
<div class="ttc" id="aclasspercent_html_ae41c50b64056aa9f9ac5b9d96b31ccb9"><div class="ttname"><a href="../../d9/d39/classpercent.html#ae41c50b64056aa9f9ac5b9d96b31ccb9">percent::percent</a></div><div class="ttdeci">percent(QWidget *parent=nullptr)</div><div class="ttdef"><b>定义</b> <a href="#l00004">percent.cpp:4</a></div></div>
<div class="ttc" id="apercent_8h_html"><div class="ttname"><a href="../../de/db7/percent_8h.html">percent.h</a></div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
制作者&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="../../doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.11.0
</small></address>
</div><!-- doc-content -->
</body>
</html>
